Problema Solution
a boy buys x eggs at (x-8)cents each.and (x-2)rashers of bacon at (x-3)cents each.if the total bill is $1.75 how many eggs does he buy.
Answer provided by our tutors
9. Again turn this into an equation:
x(x - 8) + (x-2)(x-3) = 175
x^2 - 8x + x^2 - 2x - 3x + 6 = 175
2x^2 - 13x -169 = 0
(2x + 13)(x - 13) = 0
Therefore x = 13, and the boy bought 13 eggs.